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The population standard deviation for the height of college baseball players is 3.2 inches. If we want to estimate 90% confidence interval for the population

The population standard deviation for the height of college baseball players is 3.2 inches. If we want to estimate 90% confidence interval for the population mean height of these players with a 0.7 margin of error, how many randomly selected players must be surveyed? (Round up your answer to nearest whole number)

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